comstep.java

这一些程序都是实验之用

package countbirds;
public class ComStep implements Runnable{
	private int a=0;
	public void run(){
		for(int i=0;i<100;i++)
		 {
		 a+=i;
		 Thread.yield();
		 a-=i;
		 System.out.println(a);
		 }
		 
	}
public static void main(String args[]) throws InterruptedException{
	ComStep comstep=new ComStep();
	Thread t1=new Thread(comstep);
	Thread t2=new Thread(comstep);
	//t1.run();
	//t2.run();
	t1.start();
	t2.start();
}	
	
	
}